Wifi through concrete slabs

[lkpat]

Here is the challenge, I have a Linksys WRT3200ACM router on the second floor of an apartment block.
I want the wifi signal to reach the parking area, for which it has to go through 2 flooring slabs.
The Linksys router gets through one slab but not 2.

Thoughts are:

• I need to stick to 2.4GHz, rather than 5.
• I could wire a tp-link CPE210 9dBi access point to the router and point it downwards - it's described as directional. It's also described as outdoor, so there may be health concerns if it's used indoors.
• Or, I could spread a 3 node mesh network around the second floor. Not sure if this works with a separate modem/router or the set incorporates it's own modem.

Any inputs on which (if either) is a better plan? Or, what WOULD work?

Get the 510 rather. Works like a charm. I used two to connect my neighbour to their other neighbour.

Get two and cable them to the nearest access point on each floor.

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[absynth]

Get the 510 rather. Works like a charm. I used two to connect my neighbour to their other neighbour.

Get two and cable them to the nearest access point on each floor.

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South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.

www.takealot.com

Was just about to post the same unit.